\ I Py ft 34 UNCLASS| — © 4 ba ee ij Mee ‘ke: ‘ on er 1. Studies in the five pestures should be continued. An additio pasture or two having intermediate values of scil calcium should included in these studies. 2. In order to provide information on uwteke rates after a period ef several years, the "pasture appreach" should be used in Hireshina [and Nagasaki selecting areas within the localities in which relatively heavy fallout is known to have eccurred. (This was included in our er program end Dr. Harley is planning to visit Japan for this purposs in February). 3. fr ee ue ee Me oA et . 7:8 be a = 3 | an -@ ra Alte 4 RECOMMENDATIONS FOR FUTURE STUDY a. Balloon ascents to the stratosphere should be conducted weekly schedule during CASTLE and for about 1 year ther b. The feasibility of obtaining dust samples from recksts fired into the upper atmosphere should be explored. c. Samples of the filters from aircraft engaged in daily ligence flights should be made svailable to the Atomic Commission. tang ae g 2a & BMQh lie. a nu: « 4 we teh ry 4 O, @ MW ee The program of atupspheric sempling should be expanded: d. The filter equipped F&L's assigned to Eniwetok should te cellect samples in that region prior to CASTLE. L. The milk and water supplies from 2 er 3 salected commnitieg United States should be enslysed weekly for 490, This data s correlated with periodic pooled samples of urine and bene. in the be 5. The world-wide monitor netwerk should continue intact for least a year following CASTLE. Collection sheuld be en a weekly ra than daily basis beginning about 30 days after cenclusion of the oparation. 6. The twaor producing burden of Sr in livestock should be 7. Better measurements than are now available should be sade long lived alpha activities of bomb debris. determined. ¢f the -il - 00131986 044 1031073